OSA-SH-212DM3,000M

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The OSA-SH-212DM3,000M is a Power Relay that falls within the category of Over 2 Amps. Functionally, it serves as an electrically controlled switch, operating through the energization of a coil.

Power relays can be used in many contexts and have numerous applications. The OSA-SH-212DM3,000M is mainly used in heavy-duty industrial and vehicular applications, such as electrical controls, automotive electronics, or factory automation. Its particularly robust and resistant construction qualifies it for operation in demanding environments, including those in which vibration or shock is present.

The OSA-SH-212DM3,000M is a compact, low-profile device designed to withstand heavy-duty use. It is constructed from non-magnetic stainless steel, making it ideal for applications where electromagnetic interference could be an issue. Additionally, the device features a protective dust cover, which helps keep internal components clean and operational.

The OSA-SH-212DM3,000M operates through the energization of a coil, which is triggered when a signal is sent. This sequence of events is known as the ‘keeper’ principle due to the coil’s ability to ‘hold’ the energized switch in position while it is energized. When the signal is sent, the coil is activated, resulting in the contacts opening or closing depending on how the relay is wired. The coil then holds the switch in position until it is de-energized.

The OSA-SH-212DM3,000M has a switching capacity of 3,000A at 277VAC, making it suitable for applications that require high power consumption. It also supports a high surge current of 9,000A for 2 seconds, enabling it to be used in applications requiring fast switching. The maximum switching operating frequency is 100 Hz, making it suitable for a variety of applications.

The contact material is silver, which ensures extremely low contact resistance and reliable operation. It is also potted with an epoxy resin, which makes it resistant to vibration and shock, and protects the contacts from contamination. Additionally, the device features gold-plated mounting screws, which reduce contact resistance and further improve reliability.

The OSA-SH-212DM3,000M is UL, CSA, and IEC rated and UL Listed for use in locations where hazardous areas may exist. It meets a wide range of UL requirements, and it is designed to be used in industrial and other hazardous environments.

In summary, the OSA-SH-212DM3,000M is a robust, high-performance power relay designed for industrial and vehicular applications with high power requirements. Its ‘keeper’ principle enables it to hold the energized switch in position until it is de-energized, making it suitable for applications requiring fast switching. Additionally, its construction from non-magnetic stainless steel and its epoxy-potted contacts make it resistant to vibration and shock, while its gold-plated mounting screws and silver contact materials further improve reliability.

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